The DS3231M is a highly accurate, low-power, real-time clock (RTC) with an integrated temperature-compensated crystal oscillator (TCXO) and crystal from Maxim Integrated. This precision RTC provides a robust timing solution in a compact, surface-mount package, making it ideal for space-constrained applications that require high time-keeping accuracy.

Key Features

• Accuracy: The DS3231M maintains an impressive ±5ppm (±0.432 Second/Day) accuracy over a wide temperature range, -40°C to +85°C, ensuring reliable timekeeping for critical applications.
• Power Management: With a supply voltage range of 2.3V to 5.5V, the device is optimized for low-power consumption, making it suitable for battery-powered systems. It also features an automatic switch to battery backup and timestamp on power-fail events.
• Communication: The device utilizes an I²C serial interface for communication, allowing for easy integration with most microcontrollers and processors.
• Alarm Function: It includes programmable time-of-day alarms and a temperature alarm, providing additional utility for time-sensitive tasks and monitoring.
• Memory: Integrated 236 bytes of battery-backed SRAM offers storage for data that must be preserved during power loss.
• Form Factor: The DS3231M is offered in a compact, 16-pin, 300-mil SO package, which is ideal for applications with limited PCB space.

Applications

The DS3231M is versatile and can be used in a wide array of applications, including:

• Telecommunication equipment
• Industrial systems
• Consumer electronics
• Embedded systems
• Handheld devices
• Medical devices

In summary, the DS3231M from Maxim Integrated offers a high-precision, low-power solution for timekeeping in a wide range of products. Its compact design, coupled with its advanced features, makes it an excellent choice for designers looking to enhance the reliability and functionality of their systems.